If you view a page on a phpbb forum, lets say a topic, and you are logged out. If you wish to log-in and post something to that topic, it logs you in, and redirects you to the forum index page, and you have to look up for the page you were on, or use the browser to go back.
It would be pretty, if you could make use of the referrer option, and redirect the user to the page he last accessed before the index page, other than the index.
I have seen that a few sites/forums have this feature. What do you think..?